Human Like ChatGPT Persona App

I want a mobile app that makes every ChatGPT exchange feel as if I’m talking to an actual person. The core experience is voice-based: the persona should listen through the phone’s mic, answer with natural-sounding speech, and display subtle facial animations in sync with the words. Users will be able to upload one or several reference photos and let the app generate a matching avatar, so the “face” they see really feels theirs—or the person they imagine.

The app must sign in with an existing ChatGPT / OpenAI key, pass the conversation in real time, and return responses fast enough to keep dialogue flowing. I’m open on the tech stack; Flutter, React Native, Unity or any performant cross-platform solution is fine as long as it ships smoothly on both iOS and Android and doesn’t lock us out of future features such as AR or 3-D upgrades.

I’m still evaluating whether we need built-in multilingual support, so structure the code so additional languages—TTS and speech-to-text—can be slotted in later without a rewrite.

Key deliverables:
• A functional mobile build with voice input, animated visual output, and ChatGPT integration
• Image-to-avatar pipeline: user photo → stylized, rigged head model ready for lip-sync
• Simple onboarding flow for API key entry and persona creation
• Clear documentation so my team can extend languages or visuals later

Please include a brief outline of your proposed tools, any off-the-shelf libraries you’d leverage for voice and facial animation, and a realistic timeline from prototype to store-ready release.